Reactions to Grading

As a part of every semester, faculty provide grades for students (and for the institutions where they teach). In a recent Chronicle article, Ahmed Afzaal describes common misconceptions students have about grading and how instructors can address these misconceptions. Read more at the following link.
http://chronicle.com/article/GradingIts-Discontents/132789/

How do students respond to grades in your courses? How do you handle the discouraging comments and requests?